YouTube star Casey Neistat's latest stunt involved wakeboarding through the canals of Amsterdam behind a Jet Ski ... and he did it wearing a tuxedo.

With just one day of training— he'd never been on a wakeboard until the day before the video was shot — Neistat donned a tux over a life jacket and wet suit, and hit the canals just after sunrise.

He didn't run into any problems while filming, but was stopped later in the day by officials who had seen the Instagram picture of him wakeboarding. "They were trying to say we didn't have the right permits to be wakeboarding in the canals — which we did," he explained. "In the end, everything was cool and they let us go."